| 1 (521) | Bulgarian Academy of Sciences * | BGR | |
| 2 (609) | Institute of Mathematics and Informatics Bulgarian Academy of Sciences | BGR | |
| 3 (633) | Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences | BGR | |
| 4 (708) | Institute of Information and Communication Technologies Bulgarian Academy of Sciences | BGR | |
| 5 (740) | Institute of Biophysics and Biomedical Engineering Bulgarian Academy of Sciences | BGR | |
|